The requested file:
https://pdf.datasheetcatalog.com/datasheet/siemens/BD440.pdf
is the data sheet for the following electronic components:

Siemens

#	Part Name	Description
1	BD434	PNP SILICON EPIBASE TRANSISTORS
2	BD435	PNP SILICON EPIBASE TRANSISTORS
3	BD436	PNP SILICON EPIBASE TRANSISTORS
4	BD437	PNP SILICON EPIBASE TRANSISTORS
5	BD438	PNP SILICON EPIBASE TRANSISTORS
6	BD440	PNP SILICON EPIBASE TRANSISTORS
7	BD441	PNP SILICON EPIBASE TRANSISTORS
8	BD442	PNP SILICON EPIBASE TRANSISTORS
9	BD449	PNP SILICON EPIBASE TRANSISTORS
10	Q62702-D202	PNP SILICON EPIBASE TRANSISTORS
11	Q62702-D204	PNP SILICON EPIBASE TRANSISTORS
12	Q62702-D213	PNP SILICON EPIBASE TRANSISTORS
13	Q62702-D281	PNP SILICON EPIBASE TRANSISTORS
14	Q62702-D283	PNP SILICON EPIBASE TRANSISTORS

Select the part name and then you can download the datasheet in PDF format.